FR2501524A1 - - Google Patents
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- FR2501524A1 FR2501524A1 FR8203502A FR8203502A FR2501524A1 FR 2501524 A1 FR2501524 A1 FR 2501524A1 FR 8203502 A FR8203502 A FR 8203502A FR 8203502 A FR8203502 A FR 8203502A FR 2501524 A1 FR2501524 A1 FR 2501524A1
- Authority
- FR
- France
- Prior art keywords
- corrugated sheet
- filter according
- elements
- corrugated
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/922—Mixtures of carbon monoxide or hydrocarbons and nitrogen oxides
- B01D53/925—Simultaneous elimination of carbon monoxide or hydrocarbons and nitrogen oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
- F01N3/2814—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates all sheets, plates or foils being corrugated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/14—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/18—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an adsorber or absorber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2250/00—Combinations of different methods of purification
- F01N2250/14—Combinations of different methods of purification absorption or adsorption, and filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
- F01N2330/04—Methods of manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/32—Honeycomb supports characterised by their structural details characterised by the shape, form or number of corrugations of plates, sheets or foils
- F01N2330/321—Honeycomb supports characterised by their structural details characterised by the shape, form or number of corrugations of plates, sheets or foils with two or more different kinds of corrugations in the same substrate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/02—Lead
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/04—Sulfur or sulfur oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/12—Hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A.FILTRE POUR SUBSTANCES POLLUANTES DE GAZ D'ECHAPPEMENT. B.LA MATRICE 8 FORMANT FILTRE DANS LAQUELLE PASSENT LES GAZ D'ECHAPPEMENT A EPURER EST CONSTITUEE D'ELEMENTS 10, 11 DE TOLE ONDULEE SUPERPOSES, LES ONDULATIONS 12, 13 D'ELEMENTS VOISINS S'ETENDANT EN FORMANT UN ANGLE LES UNES PAR RAPPORT AUX AUTRES. C.INDUSTRIE AUTOMOBILE.A. FILTER FOR EXHAUST GAS POLLUTANTS. B. THE MATRIX 8 FORMING A FILTER THROUGH WHICH THE EXHAUST GAS TO BE PURIFIED PASS IS CONSTITUTED OF ELEMENTS 10, 11 OF SUPERIMPOSED CORRUGATED SHEET, THE WAVES 12, 13 OF NEIGHBORING ELEMENTS EXTENDING AN ANGLE IN RELATION TO OTHERS. C. AUTOMOTIVE INDUSTRY.
Description
La présente invention concerne un filtre pour subs-The present invention relates to a filter for
tances polluantes de gaz d'échappement, notamment pour éliminer les substances polluantes des gaz de combustion de dispositifs de chauffage alimentés en combustibles fossiles ainsi que de machines à combustion interne, comprenant une matrice formant filtre, qui est disposée dans un bottier et exhaust gas pollutants, in particular for removing pollutants from the combustion gases of fossil fuel-powered heaters and internal combustion machines, comprising a filter matrix, which is arranged in a stacker and
qui est traversée par les gaz d'échappement. which is crossed by the exhaust.
Les gaz d'échappement de dispositifs de chauffage et de moteurs à combustion contiennent un certain nombre de substances polluantes, comme par exemple des oxydes de soufre, de l'oxyde de carbone, des oxydes d'azote et des hydrocarbures,ainsi que des impuretés métalliques,telles The exhaust gases from heating devices and combustion engines contain a number of polluting substances, such as, for example, sulfur oxides, carbon monoxide, nitrogen oxides and hydrocarbons, as well as impurities. metal, such
que le plomb, le cadmium et autres. Des lois sévères im- as lead, cadmium and others. Severe laws
posent des exigences de plus en plus grandes à leur élimi- pose ever greater demands on their elimination
nation.nation.
Jusqu'ici, on a prévu des dispositifs très divers pour se débarrasser des substances polluantes suivant leur type. Dans les dispositifs de chauffage, on ajoute souvent un agent de neutralisation pour éliminer les constituants acides qui s'y forment assez souvent. Pour des moteurs à So far, a variety of devices have been provided to get rid of polluting substances according to their type. In the heaters, a neutralizing agent is often added to remove the acidic constituents that are formed there quite often. For engines with
combustion, on a développé des installations de post-com- combustion, post-combustion facilities have been developed
bustion, des recyclages des gaz d'échappement, des filtres bustion, exhaust gas recycling, filters
ou des catalyseurs pour éliminer notamment l'oxyde de car- or catalysts for removing, in particular,
bone, les oxydes d'azote et aussi des métaux polluants. nitrogen oxides and also polluting metals.
L'invention vise un filtre pour substances polluan- The invention relates to a filter for pollutants
tes,qui se caractérise par la possibilité d'usages multi- tes, which is characterized by the possibility of multi-
ples, par un spectre large d'élimination des substances polluantes, par une construction simple et par une faible the broad spectrum of pollutant removal, simple construction and low
perte de charge.loss of charge.
Suivant l'invention, la matrice formant filtre est constituée d'éléments de tôle ondulée superposés, les sommets According to the invention, the filter matrix consists of superimposed corrugated sheet elements, the vertices
des ondulations d'éléments de tôle ondulée voisins s'éten- corrugations of adjacent corrugated sheet elements extend
dant en formant un angle les uns par rapport aux autres. at an angle to each other.
En raison de cet agencement, les sommets des on- Because of this arrangement, the summits of the
dulations des éléments de tôle ondulée superposés se croi- of superimposed corrugated sheet elements cross
sent sous un angle déterminé, le gaz s'écoulant entre les éléments étant contraint à des modifications de direction correspondantes. Les particules de substances polluantes contenues dans les gaz d'échappement frappent ainsi les the gas flowing between the elements being constrained to corresponding directional changes. The particles of polluting substances contained in the exhaust gases thus hit the
surfaces métalliques, les molécules de substances polluan- metal surfaces, the molecules of pollutants
tes, comme par exemple CO, N02, S02 et d'hydrocarbures se dissociant, diffusant sous forme d'atomes dans le métal et s'y fixant. Des atomes métalliques, comme par exemple such as CO, NO2, SO2 and dissociating hydrocarbons, diffusing as atoms in the metal and attaching thereto. Metallic atoms, for example
de plomb, peuvent être retenus par diffusion et par fixa- lead, may be retained by diffusion and by
tion dans la matrice formant filtre ainsi que par chimi- in the filter matrix as well as by chemi-
sorption et par condensation sur la surface de la matrice. sorption and condensation on the surface of the matrix.
A cet égard, le filtre pour substances polluantes suivant In this respect, the following pollutant filter
l'invention se caractérise par sa simplicité, par sa fai- the invention is characterized by its simplicity, by its
ble perte de charge, par son large spectre d'action et par loss of charge, by its broad spectrum of action and by
sa construction ramassée.its construction picked up.
Suivant un perfectionnement de l'invention, il According to an improvement of the invention, it
est prévu que les sommets des ondulations s'étendent symé- It is expected that the peaks of the undulations will
triquement,donc en formant un même angle, par rapport à triply, therefore at the same angle, with respect to
la direction d'écoulement.the direction of flow.
Suivant la constitution des éléments de tôle ondulée suivant l'invention, la matrice formant filtre According to the constitution of the corrugated sheet elements according to the invention, the filter matrix
peut être constituée différemment. may be constituted differently.
C'est ainsi que les éléments de tôle ondulée peuvent être constitués de plaques de tôle ondulée, de Thus, the corrugated sheet elements can consist of corrugated metal plates,
préférence rectangulaires,qui sont superposées en un pa- preferably rectangular, which are superimposed on one
quet de plaques et forment ainsi la matrice faisant offi- plates and thus form the matrix making official
ce de filtre. Ce paquet de plaques peut être placé dans un boîtier correspondant de section droite rectangulaire, en sorte que les gaz d'échappement sont contraints de this filter. This pack of plates can be placed in a corresponding rectangular cross-section box, so that the exhaust gases are forced to
s'écouler entre les plaques. -flow between the plates. -
Les éléments de tôle ondulée peuvent aussi être aboutés les uns aux autres en une bande repliée en méandres, ce qui permet d'obtenir en principe le même comportement The corrugated sheet elements can also be joined to each other in a folded meander strip, which makes it possible in principle to obtain the same behavior
à l'écoulement que dans le paquet de plaques. to flow only in the pack of plates.
Une autre possibilité consiste à former une bo- bine de tôle ondulée dans laquelle deux bandes de tôle Another possibility is to form a corrugated metal bolster in which two strips of sheet metal
ondulée sont enroulées, par exemple sur un mandrin, en é- corrugated are wound, for example on a mandrel, in
tant superposées. Les deux bandes de tôle ondulée ont m- so superimposed. The two strips of corrugated iron have
lors des sommets d'ondulation de tracés différents, de sorte que les sommets d'ondulations des bandes de tôle at the waving peaks of different plots, so that the ripple peaks of the sheet strips
ondulée voisines sur la bobine forment un angle entre elles. adjacent corrugated on the coil form an angle between them.
Il est recommandé à cet égard d'enrouler en une bobine de tôle deux bandes de tôle ondulée de même type, superposées en sorte que les sommets des ondulations de bandes de tôle In this respect, it is recommended to wind two strips of corrugated sheet of the same type in a sheet metal coil, superimposed so that the peaks of the corrugations of sheet metal strips
voisines se croisent.neighbors cross each other.
Les éléments de tôle ondulée peuvent présenter en section droite des ondulations à peu près sinusoïdales, The corrugated sheet elements may have approximately sinusoidal corrugations in cross-section,
car ces ondulations provoquent de faibles pertes de charge. because these undulations cause low pressure losses.
Mais on peut envisager aussi d'autres formes d'ondulations, par exemple à section droite en forme de triangle ou de trapèze. Le matériau pour les éléments de tôle ondulée But one can also consider other forms of undulations, for example with a cross section in the form of a triangle or trapezoid. The material for corrugated iron elements
peut être adapté à chaque application, notamment à la char- can be adapted to each application, especially to the
ge en température due aux gaz de combustion ainsi qu'à la temperature rise due to the combustion gases as well as
nature de la substance polluante. Pour des gaz de combus- nature of the polluting substance. For fuel gases
tion chauds, les éléments de tôle ondulée doivent être en métaux réfractaires, par exemple en acier réfractaire. Les matériaux réfractaires Incoloy-800 ou Inconel-600 se sont révélés convenir particulièrement bien pour des températures élevées. En revanche, pour des températures plus basses, on When hot, the corrugated metal elements must be made of refractory metals, for example refractory steel. Incoloy-800 or Inconel-600 refractory materials have proven to be particularly suitable for high temperatures. In contrast, for lower temperatures,
peut faire appel, par exemple au cuivre ou à du V2A. can use, for example copper or V2A.
Pour le bottier dans lequel la matrice formant For the casing in which the matrix forming
filtre est placée, on fait appel à des matériaux corres- filter is placed, materials of corresponding
pondants. Un matériau céramique convient particulièrement respondents. A ceramic material is particularly suitable
bien dans la gamme des températures élevées. well in the high temperature range.
La matrice formant filtre suivant l'invention peut être utilisée de manières les plus diverses dans les dispositifs de chauffage ou dans des moteurs à com- The filter matrix according to the invention can be used in a wide variety of ways in heating devices or in combustion engines.
bustion. Une possibilité d'application consiste à inter- bustion. An application possibility consists of inter-
poser les éléments de tôle ondulée entre un brûleur ou un fQyer et un échangeur de chaleur s'y raccordant. Ainsi un gaz de combustion débarrassé des substances polluantes arrive à l'échangeur de chaleur, de sorte que l'on évite des encrassages. Bien entendu, on dispose aussi de la possibilité de placer les éléments de tôle ondulée après l'échangeur de chaleur, ce qui ne fait que diminuer la place the corrugated sheet elements between a burner or fitter and a heat exchanger connected to it. Thus a combustion gas freed of polluting substances arrives at the heat exchanger, so that fouling is avoided. Of course, it is also possible to place the corrugated sheet elements after the heat exchanger, which only reduces the
pollution. On peut incorporer l'échangeur de chaleur dé- pollution. The heat exchanger can be incorporated
crit ci-dessus, par exemple dans des installations de pro- above, for example in
duction d'eau chaude ou des équipements semblables. hot water or similar equipment.
Au dessin annexé, donné uniquement à titre d'e- In the attached drawing, given solely as e-
xemplexample
La figure 1 est une vue en perspective avec ar- FIG. 1 is a perspective view with
rachement partiel de deux éléments de tôle ondulée super- partial replacement of two super-corrugated sheet metal elements
posés;posed;
La figure 2 est une vue en perspective d'un pa- Figure 2 is a perspective view of a
quet d'éléments de tôle ondulée; La figure 3 est une vue en perspective d'éléments de tôle ondulée repliés en méandres; quet of corrugated iron elements; Figure 3 is a perspective view of meandering folded corrugated sheet metal members;
La figure 4 est une vue en perspective d'une bo- FIG. 4 is a perspective view of a booster
bine d'éléments de tôle ondulée, et of corrugated iron elements, and
La figure 5 est une vue en perspective,avec arra- FIG. 5 is a perspective view, with
chement,d'un échangeur de chaleur dans lequel se trouve a heat exchanger in which is located
un paquet d'éléments de tôle ondulée. a pack of corrugated iron elements.
A la figure 1 sont représentées en perspective, avec arrachement partiel, deux plaques 1, 2 de tôle ondulée In Figure 1 are shown in perspective, partially cut away, two plates 1, 2 corrugated sheet
superposées. Les sommets des ondulations de chacune d'en- superimposed. The peaks of the undulations of each of
tre elles s'étendent rectilignement et parallèlement,les plaques 1, 2 de tôle ondulée ayant une section transversale sinusoïdale. Les plaques 1, 2 de tôle ondulée sont superposées de manière à ce que les sommets des ondulations de l'une des plaques 1 s'étendent en faisant un angle par rapport à ceux de l'autre plaque 2. Du gaz d'échappement à filtrer they extend straight and parallel, the plates 1, 2 corrugated sheet having a sinusoidal cross section. The plates 1, 2 corrugated sheet are superimposed so that the peaks of the corrugations of one of the plates 1 extend at an angle relative to those of the other plate 2. From the exhaust gas to filter
s'écoule alors suivant le sens général de la flèche A en- then flows in the general direction of arrow A in
tre les plaques 1 et 2 de tôle ondulée, de sorte que les sommets des ondulations des deux plaques 1, 2 fassent un plates 1 and 2 of corrugated iron, so that the peaks of the corrugations of the two plates 1, 2 are
même angle c. par rapport au sens de l'écoulement. same angle c. relative to the direction of flow.
Le gaz d'échappement est contraint ainsi à des modifications de direction, si bien que les molécules de substances polluantes contenues dans le gaz d'échappement viennent heurter les parois intérieures. Elles peuvent The exhaust gas is thus forced to changes in direction, so that the molecules of polluting substances contained in the exhaust gas strike the inner walls. They can
s'y dissocier et se fixer sous forme d'atomes dans le mé- to dissociate and fix themselves as atoms in the
tal des plaques 1, 2 de tôle ondulée. Si la matrice for- plates 1, 2 corrugated sheet. If the matrix
mant filtre constituée des plaques 1, 2 de tôle ondulée est conçue d'une manière appropriée, on peut abaisser avec Filter mantle made of plates 1, 2 of corrugated sheet is designed in a suitable way, can be lowered with
une efficacité de filtration de 90% les teneurs en impu- filtration efficiency of 90% the levels of
retés métalliques et de 50 à 90% les teneurs en substances polluantes gazeuses moléculaires, comme S02, CO, N02 et les hydrocarbures, comme il s'en produit par exemple dans metal content and from 50 to 90% the contents of molecular gaseous pollutants, such as SO 2, CO, NO 2 and hydrocarbons, as occurs for example in
des moteurs de combustion.combustion engines.
La conception d'un filtre ayant une matrice for- The design of a filter with a matrix of
mant filtre constitué de plaques 1, 2 de tôle ondulée peut mantle filter consisting of plates 1, 2 of corrugated iron can
s'effectuer suivant le procédé de dimensionnement et d'op- following the sizing and op-
timisation décrit aux demandes de brevet publiées en Ré- described in the patent applications published in Re-
publique Fédérale d'Allemagne sous les numéros 2 655 296 Federal Republic of Germany under number 2 655 296
et 2 655 310.and 2,655,310.
La figure 2 représente une matrice formant fil- Figure 2 shows a filter matrix
tre composée de plaques 3 carrées de tôle ondulée. Les plaques 3 de tôle ondulée ont des ondulations 4 obtenues par empreinte et symbolisées ici par de simples traits, les ondulations 4 des plaques 3 de tôle ondulée voisines étant croisées les unes par rapport aux autres. Le sens général d'écoulement du gaz d'échappement est représenté à nouveau par la flèche A, les ondulations 4 inclinées be composed of 3 square plates of corrugated sheet. The plates 3 of corrugated sheet have corrugations 4 obtained by imprinting and symbolized here by simple lines, the corrugations 4 of the plates 3 of corrugated sheet adjacent being crossed with respect to each other. The general flow direction of the exhaust gas is represented again by the arrow A, the inclined corrugations 4
par rapport à ce sens d'écoulement provoquant des modifi- relative to this direction of flow causing changes
cations de direction du gaz d'échappement. La matrice formant filtre peut être logée dans un bottier adapté direction of the exhaust gas. The filter matrix can be housed in a suitable housing
qui est ouvert suivant la direction d'écoulement. which is open in the direction of flow.
La figure 3 représente une matrice formant fil- Figure 3 shows a matrix forming
tre correspondant à celle de la figure 2, si ce n'est que les plaques de tôle ondulée y sont aboutées en une bande de tôle ondulée qui est repliée en-méandres. La bande 5 de tôle ondulée a des surfaces 6 de tôle ondulée obtenues corresponding to that of Figure 2, except that the sheets of corrugated sheet are abutted in a strip of corrugated sheet which is folded in-meander. The corrugated sheet metal strip 5 has corrugated sheet surfaces 6 obtained
par empreinte de même type. Par le repliage, les surfa- by imprint of the same type. By folding, the surfaces
ces 6 de tôle ondulée viennent l'une sur l'autre en sorte que les ondulations 7isymbolisées à nouveau par des traits, des surfaces 6 de tôle ondulée s'étendent en formant un angle les unes par rapport aux autres. La matrice formant filtre est traversée d'une manière générale suivant le sens de la flèche A avec les modifications de direction these 6 corrugated sheet come on one another so that the corrugations 7isymbolized again by lines, surfaces 6 of corrugated sheet extend at an angle to each other. The filter matrix is traversed generally in the direction of the arrow A with the changes of direction
provoquées par les ondulations 7.caused by ripples 7.
A la figure 4 est représentée une matrice formant filtre qui est constituée d'une bobine 8 de tôle enroulée sur un mandrin 9. La bobine 8 de tôle est constituée,dans FIG. 4 shows a filter matrix consisting of a coil 8 of sheet metal wound on a mandrel 9. The coil 8 of sheet metal is constituted in FIG.
le mode de réalisation représenté,précisément de deux ban- the embodiment shown, precisely two
des 10, 11 de tôle ondulée qui sont tirées simultanément de deux bobines de réserve non représentées. Les bandes 10, 11 of corrugated sheet which are drawn simultaneously from two spare coils not shown. Groups
10, 11 de tôle ondulée ont des ondulations 12, 13 incli- 10, 11 of corrugated sheet have corrugations 12, 13 inclined
nées réparties sur toute leur longueur, ce qui n'est repré- distributed over their entire length, which is not
senté que partiellement à la figure. Elles sont enroulées l'une sur l'autre, en sorte que les ondulations 12, 13 des felt only partially in the figure. They are wound on one another, so that the undulations 12, 13 of the
couches voisines de la bobine 8 de tôle s'étendent en fai- adjacent layers of the coil 8 of sheet metal extend in
sant des angles les unes par rapport aux autres. On ob- at angles to each other. We ob-
tient ainsi essentiellement le même comportement à l'é- thus essentially the same behavior in the
coulement que dans la matrice formant filtre suivant les figures 1 à 3 lorsque la bobine 8 de tôle est traversée suivant le sens de la flèche A. La figure 5 représente le montage en série d'une matrice 16 formant filtre,du type illustré à la figure 2, et d'un dispositif 14 de transmission de chaleur fabriqué only in the filter matrix according to FIGS. 1 to 3 when the sheet metal coil 8 is traversed in the direction of the arrow A. FIG. 5 represents the series connection of a matrix 16 forming a filter, of the type illustrated in FIG. FIG. 2, and a heat transfer device 14 manufactured
en céramique et agencé en couches. La matrice 16 métalli- ceramic and arranged in layers. The metal matrix 16
que formant filtre est placée entre des parois 15 en cérami- filter forming is placed between ceramic walls 15
que,qui font saillie à l'entrée du dispositif 14 de trans- that protrude at the entrance of the device 14 for transmitting
mission de la chaleur sur au moins la longueur de la ma- mission of heat on at least the length of the
trice formant filtre. Les gaz de combustion traversent le dispositif 14 de transmission de la chaleur du haut vers le bas suivant le sens de la flèche A, en sorte que des gaz de combustion débarrassés de substances polluantes arrivent dans le dispositif 14 de transmission de la chaleur. trice forming filter. The combustion gases pass through the heat transfer device 14 from the top to the bottom in the direction of the arrow A, so that combustion gases freed of polluting substances arrive in the heat transfer device 14.
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813109609 DE3109609A1 (en) | 1981-03-13 | 1981-03-13 | "POLLUTANT FILTER FOR EXHAUST GAS" |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2501524A1 true FR2501524A1 (en) | 1982-09-17 |
Family
ID=6127114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8203502A Withdrawn FR2501524A1 (en) | 1981-03-13 | 1982-03-03 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3109609A1 (en) |
FR (1) | FR2501524A1 (en) |
GB (1) | GB2094658A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3341868A1 (en) * | 1983-11-19 | 1985-05-30 | Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart | MATRIX FOR A CATALYTIC REACTOR |
US4725411A (en) * | 1985-11-12 | 1988-02-16 | W. R. Grace & Co. | Device for physical and/or chemical treatment of fluids |
US4753919A (en) * | 1987-03-23 | 1988-06-28 | W. R. Grace & Co. | Method for optimizing stacking characteristics of corrugated metal foil |
DE4210358C2 (en) * | 1992-03-30 | 1994-03-03 | Thyssen Edelstahlwerke Ag | Device for enlarging small sticky particles |
DE10356997A1 (en) * | 2003-12-03 | 2005-07-07 | Helmut Swars | particulate Filter |
DE102004004042B9 (en) * | 2004-01-27 | 2006-07-13 | J. Eberspächer GmbH & Co. KG | An exhaust gas purification arrangement and method for producing an exhaust gas purification arrangement |
DE102004042730B4 (en) * | 2004-05-21 | 2008-07-31 | Robert Bosch Gmbh | Filter device, in particular for an exhaust system of an internal combustion engine |
EP2505800A1 (en) * | 2011-03-30 | 2012-10-03 | Scambia Industrial Developments AG | Unit for reducing the emission of pollutants contained in the exhaust gas of an internal combustion engine |
CN103670623B (en) * | 2013-12-27 | 2016-08-17 | 吉林省众鑫汽车装备有限公司 | Automobile and metal fiber mesh carrier |
-
1981
- 1981-03-13 DE DE19813109609 patent/DE3109609A1/en not_active Withdrawn
-
1982
- 1982-03-03 FR FR8203502A patent/FR2501524A1/fr not_active Withdrawn
- 1982-03-12 GB GB8207303A patent/GB2094658A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE3109609A1 (en) | 1982-09-23 |
GB2094658A (en) | 1982-09-22 |
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Legal Events
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ER | Errata listed in the french official journal (bopi) | ||
ST | Notification of lapse |